build(deps): bump aiopg from 1.3.5 to 1.4.0 (#905)

Bumps [aiopg](https://github.com/aio-libs/aiopg) from 1.3.5 to 1.4.0.
- [Release notes](https://github.com/aio-libs/aiopg/releases)
- [Changelog](https://github.com/aio-libs/aiopg/blob/master/CHANGES.txt)
- [Commits](https://github.com/aio-libs/aiopg/compare/v1.3.5...v1.4.0)

---
updated-dependencies:
- dependency-name: aiopg
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

poetry.lock

@@ -15,15 +15,15 @@ sa = ["sqlalchemy (>=1.0,<1.4)"]
 
 [[package]]
 name = "aiopg"
-version = "1.3.5"
+version = "1.4.0"
 description = "Postgres integration with asyncio."
 category = "main"
 optional = true
-python-versions = ">=3.6"
+python-versions = ">=3.7"
 
 [package.dependencies]
 async-timeout = ">=3.0,<5.0"
-psycopg2-binary = ">=2.8.4"
+psycopg2-binary = ">=2.9.5"
 
 [package.extras]
 sa = ["sqlalchemy[postgresql-psycopg2binary] (>=1.3,<1.5)"]
@@ -1423,8 +1423,8 @@ aiomysql = [
     {file = "aiomysql-0.1.1.tar.gz", hash = "sha256:0d686c4fdae6b67d1825d8be60fa3b0e644fca2c84d3c936d850fc259c8e107e"},
 ]
 aiopg = [
-    {file = "aiopg-1.3.5-py3-none-any.whl", hash = "sha256:1b865d1c5537204e7d22a98668c4f8c68ff50153504e0f3f15f42684fbf3afe7"},
-    {file = "aiopg-1.3.5.tar.gz", hash = "sha256:94e036f256da458d9d3c9b81f186bcafef44830ea9cfdfa845f952c8bf6cfa99"},
+    {file = "aiopg-1.4.0-py3-none-any.whl", hash = "sha256:aea46e8aff30b039cfa818e6db4752c97656e893fc75e5a5dc57355a9e9dedbd"},
+    {file = "aiopg-1.4.0.tar.gz", hash = "sha256:116253bef86b4d954116716d181e9a0294037f266718b2e1c9766af995639d71"},
 ]
 aiosqlite = [
     {file = "aiosqlite-0.17.0-py3-none-any.whl", hash = "sha256:6c49dc6d3405929b1d08eeccc72306d3677503cc5e5e43771efc1e00232e8231"},